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Glasgow Intl

$783+ Cheap flights from Portland, ME (PWM) to Glasgow Intl (GLA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — GLA
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheap flight deals from Portland to Glasgow Intl

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Glasgow Intl (GLA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$783
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$588
Provider with most accurate pricing for Portland-Glasgow Intl flight deals.
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Provider most trusted by Cheapflights users for Portland-Glasgow Intl flights.
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From Portland to Glasgow Intl
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Highest demand for flights based on searches. 19% potential increase in price ($175 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Portland to Glasgow Intl

Cheapest flights from Portland to Glasgow Intl
Explore the most affordable flight options available from Portland to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 14, 2025.

This American Airlines deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/272:42 pmPWM - GLA
2 stops16h 03mAmerican Airlines
Mon 11/36:35 amGLA - PWM
2 stops16h 35mAmerican Airlines
Deal found 10/13$783
This United Airlines deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:00 pmPWM - GLA
2 stops16h 50mMultiple Airlines
Mon 11/36:10 amGLA - PWM
3 stops22h 07mMultiple Airlines
Deal found 10/13$893
This Delta deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:45 pmPWM - GLA
2 stops19h 00mDelta
Tue 10/211:30 pmGLA - PWM
2 stops15h 35mDelta
Deal found 10/12$949

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Glasgow Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 14, 2025.
Use the filters below to find and compare flights from Portland to Glasgow Intl Airport that are best for you.

Fly from

Portland

Fly to

Glasgow Intl

Route

Depart

Return

Price

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Mon 10/27

2:42 pm-10:45 am

2 stops16h 03m

Glasgow Intl

Mon 11/3

6:35 am-6:10 pm

2 stops16h 35m

$783

PortlandGlasgow

PWM - GLA

PWMGLA

Portland

Mon 10/27

3:00 pm-11:50 am

2 stops16h 50m

Glasgow Intl

Mon 11/3

6:10 am-11:17 pm

3 stops22h 07m

$893

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Compare providers for flights from Portland to Glasgow Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Glasgow Intl in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Glasgow Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Glasgow Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Glasgow Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Glasgow Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Glasgow Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Glasgow Intl Airport

What is the cheapest month to book a flight from Portland, Maine to Glasgow Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Glasgow Intl Airport (average of $477). Flying from Portland, Maine to Glasgow Intl Airport in June is currently the most expensive (average of $577). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Portland to Glasgow Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Glasgow Intl?

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly out of when you book flights from Portland to Glasgow Intl. 0 airlines have flights from Portland to Glasgow Intl on a regular basis. Booking flights from Portland to Glasgow Intl should not be difficult; the airport handles an average of 0 outbound flights to Glasgow Intl per day.

  • How long is the flight from Portland, Maine to Glasgow Intl Airport?

    A quick flight from Portland, Maine to Glasgow Intl Airport can take about 16h 03m. American Airlines provides one of the quickest options available for as low as $783. Airlines will cover a distance of 2934 mi.

  • Can I find deals for flights from Portland to Glasgow Intl that include hotel bookings?

    Yes. In addition to deals on Portland to Glasgow Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Glasgow Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Glasgow Intl.

  • Can I find deals for business class flights from Portland to Glasgow Intl?

    Yes. Cheapflights offers flight deals from Portland to Glasgow Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Glasgow Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Glasgow Intl Airport (average of $477). Flying from Portland, Maine to Glasgow Intl Airport in June is currently the most expensive (average of $577). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley

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